LG Energy Solution, Ltd. patent applications on April 3rd, 2025
Patent Applications by LG Energy Solution, Ltd. on April 3rd, 2025
LG Energy Solution, Ltd.: 15 patent applications
LG Energy Solution, Ltd. has applied for patents in the areas of H01M4/36 (5), H01M4/04 (5), H01M4/02 (5), H01M4/583 (4), H01M10/0525 (4) H01M10/0525 (3), B05C13/02 (1), B65H19/102 (1), G01R31/385 (1), G01R31/392 (1)
With keywords such as: electrode, negative, battery, active, layer, part, cell, voltage, current, and material in patent application abstracts.
Patent Applications by LG Energy Solution, Ltd.
Inventor(s): Jong Su Yoon of Daejeon KR for lg energy solution, ltd., Taek Soo Lee of Daejeon KR for lg energy solution, ltd., Jin Ho Cho of Daejeon KR for lg energy solution, ltd., Shin Wook Jeon of Daejeon KR for lg energy solution, ltd., Young Gon Kim of Daejeon KR for lg energy solution, ltd.
IPC Code(s): B05C13/02, B05C5/02, H01M4/04, H01M4/587
CPC Code(s): B05C13/02
Abstract: a magnetic alignment device includes a first magnet part and a second magnet part, a thickness measuring part, and a control part. the first and second magnet parts accommodate an electrode sheet therebetween and the thickness measuring part measures a thickness of a negative electrode slurry disposed on the electrode sheet. the control part adjusts the separation distance of the first and second magnet parts. the magnetic alignment device measures the thickness of the negative electrode slurry applied on the negative electrode current collector in real time and controls the intensity of the magnetic field by adjusting the separation distance of the magnet part according to the measured negative electrode slurry thickness, and has an advantage of uniformly high alignment degree of the crystal faces of the carbon-based negative electrode active material contained in prepared negative electrode active layer.
Inventor(s): Won Seok Choi of Daejeon KR for lg energy solution, ltd., Seung Bae Lee of Daejeon KR for lg energy solution, ltd., Ju Hwan Baek of Daejeon KR for lg energy solution, ltd.
IPC Code(s): B65H19/10, B65H19/12, H01M50/105
CPC Code(s): B65H19/102
Abstract: an embodiment of the present disclosure provides a pouch supply apparatus for supplying a sheet-type pouch. the pouch supply apparatus includes a suction unit configured to suction an end of the pouch and unwind a portion of the pouch from a core so that a pouch roll, in which the pouch is wound around the core, is moved in an unwound state and a conveyance unit configured to convey the pouch roll at least during a state in which the pouch roll is unwound by the suction unit.
Inventor(s): Won Seok Choi of Daejeon KR for lg energy solution, ltd., Seung Bae Lee of Daejeon KR for lg energy solution, ltd., Ju Hwan Baek of Daejeon KR for lg energy solution, ltd.
IPC Code(s): B65H19/10, B65H19/12, H01M50/105
CPC Code(s): B65H19/102
Abstract: as a result, it is possible to relieve an operator's workload by automatically replacing pouch rolls. also, pouch rolls are automatically replaced, and thus, it is possible to minimize pouch supply interruption and maximize process efficiency.
Inventor(s): Junguk Park of Daejeon KR for lg energy solution, ltd.
IPC Code(s): G01R31/385, G01R19/165, G01R19/30, G01R31/396, H01M10/42, H01M10/48
CPC Code(s): G01R31/385
Abstract: a battery system comprises: a battery pack including multiple battery cells; and a battery management system which measures the cell voltages of the multiple battery cells at the time of wake-up so as to configure numbers of the multiple battery cells, periodically measures the cell voltages of the multiple battery cells after the wake-up so as to detect a maximum cell voltage and a minimum cell voltage, compares the minimum cell voltage with the cell voltage of at least one first battery cell to be diagnosed, compares the maximum cell voltage with the cell voltage of at least one second battery cell to be diagnosed, and diagnoses, according to the results of the comparisons, whether the battery cells to be diagnosed are abnormal.
Inventor(s): Soon-Ju Choi of Daejeon KR for lg energy solution, ltd., Seo-young Yoon of Daejeon KR for lg energy solution, ltd., Dae-Soo Kim of Daejeon KR for lg energy solution, ltd., Yuong-deok Kim of Daejeon KR for lg energy solution, ltd.
IPC Code(s): G01R31/392, G01R31/374, G01R31/3842, G01R31/389
CPC Code(s): G01R31/392
Abstract: a battery diagnosing apparatus includes a battery sensing unit configured to generate a voltage detection signal indicating voltage of a target battery and a current detection signal indicating current of the target battery. the battery diagnosing apparatus also includes a battery diagnosing unit configured to generate a measurement voltage profile representing the correspondence between an accumulated capacity and the voltage of the target battery in a period of interest by monitoring the voltage and current of the target battery while the target battery is being charged or discharged and diagnose abnormality of the target battery by comparing the measurement voltage profile with a criterion voltage profile.
Inventor(s): Hak-Yoon Kim of Daejeon KR for lg energy solution, ltd., Hyeon-Jeong Kang of Daejeon KR for lg energy solution, ltd., Chang-Yoon Lim of Daejeon KR for lg energy solution, ltd., Moon-Soo Park of Daejeon KR for lg energy solution, ltd., Ho-Hyeon Ryu of Daejeon KR for lg energy solution, ltd.
IPC Code(s): H01M4/36, H01M4/02, H01M4/133, H01M4/583, H01M4/62
CPC Code(s): H01M4/366
Abstract: an electrode and an electrochemical device including the same. the electrode includes a current collector, and an electrode active material layer formed on the current collector, wherein the electrode active material layer includes granules, and the granule shows a higher binder content ratio in the surface portion as compared to the binder content ratio in the core portion.
Inventor(s): Young Jae KIM of Daejeon KR for lg energy solution, ltd., Min Ji KIM of Daejeon KR for lg energy solution, ltd., Jaewook LEE of Daejeon KR for lg energy solution, ltd.
IPC Code(s): H01M4/62, H01M4/02, H01M4/04, H01M4/131, H01M4/1391, H01M4/36, H01M4/48, H01M10/052
CPC Code(s): H01M4/628
Abstract: the present disclosure relates to a negative electrode for a lithium secondary battery, a method for manufacturing the negative electrode, and the lithium secondary battery including the negative electrode. the negative electrode can include a negative electrode current collector layer, a silicon-based negative electrode active material layer provided on at least one surface of the negative electrode current collector layer, and a ceramic layer provided on a surface of the silicon-based negative electrode active material layer opposite to a surface of the negative electrode active material layer facing the negative electrode current collector layer. the ceramic layer can include a ceramic layer composition or a dried product thereof, and the ceramic layer composition can include ceramic and a binder. batiocan be included in an amount of 10 parts by weight or more and 50 parts by weight or less based on 100 parts by weight of the ceramic.
Inventor(s): Jong Su Yoon of Daejeon KR for lg energy solution, ltd., Taek Soo Lee of Daejeon KR for lg energy solution, ltd., Jin Ho Cho of Daejeon KR for lg energy solution, ltd., Shin Wook Jeon of Daejeon KR for lg energy solution, ltd., Young Gon Kim of Daejeon KR for lg energy solution, ltd.
IPC Code(s): H01M10/0525, H01M4/02, H01M4/04, H01M4/36, H01M4/583
CPC Code(s): H01M10/0525
Abstract: disclosed herein relates to a negative electrode for lithium secondary battery and a method for manufacturing the same. the negative electrode has a structure in which a first negative electrode active layer and a second negative electrode active layer are sequentially stacked on a negative electrode current collector. by controlling alignment (o.i) of the carbon-based active material to be lower in the second negative electrode active layer than in the first negative electrode active layer, and by preparing a low percentage of pores in the second negative electrode active layer, it is possible to have a flow path for the electrolyte to move inside the negative electrode active layer even after the rolling process of the negative electrode active layer. the negative electrode also has a high wetting ability to the electrolyte and high energy density.
Inventor(s): Jong Su Yoon of Daejeon KR for lg energy solution, ltd., Taek Soo Lee of Daejeon KR for lg energy solution, ltd., Jin Ho Cho of Daejeon KR for lg energy solution, ltd., Shin Wook Jeon of Daejeon KR for lg energy solution, ltd., Young Gon Kim of Daejeon KR for lg energy solution, ltd.
IPC Code(s): H01M10/0525, H01M4/02, H01M4/04, H01M4/36, H01M4/583
CPC Code(s): H01M10/0525
Abstract: a negative electrode for a lithium secondary battery includes a negative electrode active layer divided into a center region, an edge region, and a sliding region on a negative electrode current collector. the lithium precipitation at the end of the negative electrode active layer can be suppressed by the alignment (o.i) of each carbon-based negative electrode active material contained in the center region, the edge region, and the sliding region satisfying equation 1 and equation 2. a secondary battery including the same has the advantage of excellent rapid charging performance. a method of manufacturing the negative electrode is also provided.
Inventor(s): Jong Su Yoon of Daejeon KR for lg energy solution, ltd., Taek Soo Lee of Daejeon KR for lg energy solution, ltd., Jin Ho Cho of Daejeon KR for lg energy solution, ltd., Shin Wook Jeon of Daejeon KR for lg energy solution, ltd., Young Gon Kim of Daejeon KR for lg energy solution, ltd.
IPC Code(s): H01M10/0525, H01M4/02, H01M4/04, H01M4/36, H01M4/38, H01M4/505, H01M4/525, H01M4/583
CPC Code(s): H01M10/0525
Abstract: a negative electrode for a lithium secondary battery includes a carbon-based negative electrode active material and a silicon-based negative electrode active material together as a negative electrode active material. the negative electrode exhibits excellent characteristics of charge and discharge capacity and energy density. furthermore, the negative electrode has the advantage of exhibiting high charge characteristics and life characteristics during long-term charge and discharge by realizing the alignment (o.i) of the carbon-based negative electrode active material after activation in a predetermined range that is lower than the alignment (o.i) of the carbon-based negative electrode active material before activation. a lithium secondary battery including the negative electrode is also provided. further, methods of manufacturing the negative electrode and the lithium secondary battery are also provided.
[[20250112267. METHOD FOR RESTORING INOIC CONDUCTIVITY OF SULFIDE-BASED SOLID-STATE ELECTROLYTE, SULFIDE-BASED SOLID-STATE ELECTROLYTE HAVING IONIC CONDUCTIVITY RESTORED BY THE METHOD, AND LITHIUM ION SECONDARY BATTERY COMPRISING THE SOLID-STATE ELECTROLYTE_simplified_abstract_(lg energy solution, ltd.)]]
Inventor(s): Yeeun KIM of Daejeon KR for lg energy solution, ltd., Youngbok KIM of Daejeon KR for lg energy solution, ltd.
IPC Code(s): H01M10/0562, H01M10/0525
CPC Code(s): H01M10/0562
Abstract: a method for restoring ionic conductivity of a sulfide-based solid-state electrolyte, a sulfide-based solid-state electrolyte of which ionic conductivity is restored by the method, and a lithium ion secondary battery including the sulfide-based solid-state electrolyte are provided. the method includes a) contacting a sulfide-based solid-state electrolyte having a reduced ionic conductivity with a solvent having a dielectric constant of less than 7; and b) drying the solid-state electrolyte contacted with the solvent.
Inventor(s): Tae Cheol JEONG of Daejeon KR for lg energy solution, ltd., Seog Jin YOON of Daejeon KR for lg energy solution, ltd.
IPC Code(s): H01M10/44, H01M10/42, H01M10/48
CPC Code(s): H01M10/441
Abstract: a cell balancing method is capable of increasing cell balancing efficiency by variably controlling a cell balancing switching pulse-width modulation (pwm) duty ratio depending on a cell balancing current, a battery management system (bms temperature, and an operating mode. further, a battery pack using the same cell balancing method is provided.
Inventor(s): Sung Tack Hwang of Daejeon KR for lg energy solution, ltd.
IPC Code(s): H01M50/143, H01M50/503, H01M50/505, H01M50/517, H01M50/591
CPC Code(s): H01M50/143
Abstract: a busbar assembly includes a busbar body, a firewall, and a heat-resistant member. the busbar body has an electrical connection portion formed at each end thereof and the firewall is coupled to an outer surface of the busbar body adjacent to the electrical connection portion. the heat-resistant member encloses the firewall and the outer surface of the busbar body excluding the electrical connection portion so that the penetration of flames between the heat-resistant member and the busbar body is delayed, and the safety of the busbar assembly is improved.
Inventor(s): Juhwan Shin of Daejeon KR for lg energy solution, ltd., Hyoungsuk Lee of Daejeon KR for lg energy solution, ltd., Youngjin Kim of Daejeon KR for lg energy solution, ltd., Taekyeong Lee of Daejeon KR for lg energy solution, ltd., Namhoon Heo of Daejeon KR for lg energy solution, ltd.
IPC Code(s): H01M50/249, B60L50/64, H01M10/613, H01M10/625, H01M10/647, H01M10/6554, H01M10/656, H01M50/211, H01M50/30
CPC Code(s): H01M50/249
Abstract: a battery pack may include a quadrilateral base plate; a quadrilateral under cover spaced apart from the base plate and to face the base plate; a side pack frame connected to an edge of the base plate and an edge of the under cover, and configured to form a periphery of the lower case; and a support beam provided between the base plate and the under cover. the support beam may include a hollow pipe having an end connected to the side pack frame. a base vent hole may be provided at an area of the base plate facing the support beam and a beam vent hole may be provided at an area of the support beam facing the base vent hole. the hollow portion of the support beam may be in communication with a frame hollow portion of the side pack frame. the frame hollow portion may be connected to a pack vent.
20250112338. CYLINDRICAL SECONDARY BATTERY_simplified_abstract_(lg energy solution, ltd.)
Inventor(s): Jae Won LIM of Daejeon KR for lg energy solution, ltd., Je Jun LEE of Daejeon KR for lg energy solution, ltd., Ji Min JUNG of Daejeon KR for lg energy solution, ltd., Hak Kyun KIM of Daejeon KR for lg energy solution, ltd.
IPC Code(s): H01M50/533, H01M50/107, H01M50/152, H01M50/169, H01M50/186, H01M50/342, H01M50/627
CPC Code(s): H01M50/533
Abstract: a cylindrical secondary battery includes an electrode assembly provided with an electrode tab; a battery can configured to accommodate the electrode assembly through an opening defined at one side thereof; a cap plate covering the opening; a collector disposed between the electrode assembly and the cap plate to electrically connect the electrode tab to the battery can; and a spacer having a body part disposed between the collector and the cap plate, a sealing part configured to seal a gap between the battery can and the cap plate, and a connection part configured to connect the body part to the sealing part. the collector includes a center part; a can coupling part coupled to the battery can; and a bridge connecting the center part to the can coupling part. the bridge of the collector and the connection part of the spacer do not overlap other.
Inventor(s): Yeo Kyung Yoon of Daejeon KR for lg energy solution, ltd., Jeong In Yu of Daejeon KR for lg energy solution, ltd., Yong Jun Kim of Daejeon KR for lg energy solution, ltd.
IPC Code(s): H02J7/00, G01R31/388, G01R31/389
CPC Code(s): H02J7/00712
Abstract: systems and methods for charging protocols for secondary batteries are provided including: measuring an open-circuit voltage (v) according to a state-of-charge (soc) for a two-electrode cell, charged with a reference current; measuring second open-circuit voltages (v) according to the state-of-charge when charging the cell with a plurality of different charging currents; calculating an internal resistance value (r) according to the state-of-charge using an equation (r)=(v−v)/ic for the different charging currents, wherein ic is a value for the different charging currents, and computing a charging current-specific internal resistance profile mapping the internal resistance value according to the state-of-charge for the different charging currents; and identifying, for the charging current-specific internal resistance profiles, each inflection point, determining a lowest resistance value among the inflection points as a reference value, and determining, for the computed charging current-specific internal resistance profiles, the state-of-charge having the reference value as a limit state-of-charge.
LG Energy Solution, Ltd. patent applications on April 3rd, 2025
- LG Energy Solution, Ltd.
- B05C13/02
- B05C5/02
- H01M4/04
- H01M4/587
- CPC B05C13/02
- Lg energy solution, ltd.
- B65H19/10
- B65H19/12
- H01M50/105
- CPC B65H19/102
- G01R31/385
- G01R19/165
- G01R19/30
- G01R31/396
- H01M10/42
- H01M10/48
- CPC G01R31/385
- G01R31/392
- G01R31/374
- G01R31/3842
- G01R31/389
- CPC G01R31/392
- H01M4/36
- H01M4/02
- H01M4/133
- H01M4/583
- H01M4/62
- CPC H01M4/366
- H01M4/131
- H01M4/1391
- H01M4/48
- H01M10/052
- CPC H01M4/628
- H01M10/0525
- CPC H01M10/0525
- H01M4/38
- H01M4/505
- H01M4/525
- H01M10/0562
- CPC H01M10/0562
- H01M10/44
- CPC H01M10/441
- H01M50/143
- H01M50/503
- H01M50/505
- H01M50/517
- H01M50/591
- CPC H01M50/143
- H01M50/249
- B60L50/64
- H01M10/613
- H01M10/625
- H01M10/647
- H01M10/6554
- H01M10/656
- H01M50/211
- H01M50/30
- CPC H01M50/249
- H01M50/533
- H01M50/107
- H01M50/152
- H01M50/169
- H01M50/186
- H01M50/342
- H01M50/627
- CPC H01M50/533
- H02J7/00
- G01R31/388
- CPC H02J7/00712